STEPPED EJECTOR SLEEVE
SKH51 Wall thickness 0.6mm–
High Speed Steel SKH51 Die Steel SKD61 + Nitriding High Speed Steel SKH51
Delivery Quotation
PartNumber – D – L – P – V – N – S – (KC/WKC … etc.) ESVBF – 9.6 – 120.05 – P8.55 – V6.10 – N70 – S12.5 – KC 4.8
Alterations
Alteration details D P.225
4mm
Alterations Code
Spec.
Alterations Code
Spec.
JIS (6/8mm)
E Range of guaranteed retention diameter (D) precision (Details D P.221 ) Step R (Details D P.222 ) E Range of guaranteed tip–diameter precision (b 2 ) (Details D P.222 )
Part Number
Head thickness
T P Tolerance
T V Tolerance
Reduces the head thickness to less than standard. TC = 0.1mm increments E T/2 ≦ TC ＜ T, T–TC ≦ Lmax.–L (Dimensions L, N, (L–S) remain unchanged)
Concentricity
Applicable center pin shaft diameter tolerance
D selection type D designation type ESVFE ESVBF ESVJFE ESVJBF
Single flat cutting D/2 ≦ KC ＜ H/2
0 － 0.02
TC
KC
TC
KC － 0.02 0
0 –0.005 (Details D P.219 )
10mm
4mm (T4)
+ 0.005 0
T
0 –0.005
6/8mm (JIS)
◎φ 0.005
Reduces the head diameter. HC = 0.1mm increments E D ≦ HC ＜ H E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
D(P) –0.01 –0.02
+ 0.01 0
※ Note that for sleeves with V dimension tolerance of with center pins that have shaft diameter tolerance 0
ESVFE–H ESVBF–H
, combination
WKC Two flats cutting D/2 ≦ WKC ＜ H/2
About Designation Unit for Key Flat Cutting
+ 0.01 0
–0.01 –0.02
0 － 0.02
–0.005 is not recommended. The reason for this is the fitting sections S are longer than ones with V dimension tolerance + 0.005 0 . (Details D P.219 )
4mm (T4)
HC
WKC
D(P) 0
–0.01 –0.02
ESVFE–M ESVBF–M
–0.005
◎φ 0.01
Varied width parallel flats cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
KAC KBC
＋ 3 0
◎ 0.003
(D selection type) (D designation type) ESVFE–H ESVBF–H ESVFE–M ESVBF–M
(D selection type)
(D designation type)
0 － 3
（ L － S ）
－ 0.02 0
－ 0.02 0
S
KAC
KBC
ESVFE ESVBF ESVJFE ESVJBF
(1) To align the key flat with the retention diameter Unit of designation (D selection type) 0.5mm increments possible (D selection type) 0.05mm increments possible
Reduces the head diameter. (precision) HCC = 0.1mm increments E D + 1 ≦ HCC ＜ H–0.3 Performs C chamfering on the tip. CGX = 0.1mm increments E 0.2 ≦ CGX ≦ 1.5 and CGX ≦ P–V
R ≦ 0.5
Step R
◎ 0.005
HCC
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
RKC
◎ 0.01
RKC － 0.02 0
± 0.05 CGX 45 °
◎ 0.03
CGX
＋ 0.005 0 P
＋ 0.01 0 P
2 –0.1 E Available when L–N ≧ 50 X Combination with RGX not available
V
V
DKC Three flats cutting D/2 ≦ DKC ＜ H/2
0
－ 0.02 T
b 2
L
◎ 0.06
0 － 0.02
＋ 5 0
（ ）
L － N ）
DKC
DKC
N － 5 0
Concentricity
Performs R chamfering on the tip. RGX = 0.1mm increments E 0.3 ≦ RGX ≦ 1.5 and RGX ≦
C = V + (0.2–0.4)
＋ 0.02
＋ 0.05 0
0 （ L > 200
RGX
± 0.1
L
L
Standard
P–V
Four flats cutting D/2 ≦ SKC ＜ H/2
M Material H Hardness
SKH51
RGX
SKC
2 –0.1 E Available when L–N ≧ 50 X Combination with CGX not available
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
－ 0.02 SKC 0
58–60HRC Range of guaranteed base material hardness (Details D P.223 ) Overall quenching (No annealing on head)
Total Length Designation
L
AG °
E Note that the stepped center pin's retention diameter (D) is too large to fit in the recess (C). (Details D P.220 )
± 0.5
Two flats (angled) cutting D/2 ≦ KGC < H/2 AG = 1°increments 0 ＜ AG ＜ 360
Free Designation Shaft Diameter(P) Total Length Designation Shaft Diameter(P)
0 °
KGC
■ D selection type Head thickness 4mm Head thickness JIS
KGC
Part Number
0.01mm increments
120 ° 120 °
N 1mm increments
Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
－ 0.02 120 ° 0
S 0.5mm increments
Type
KTC
Stepped Shape
Head thickness 4mm
Head thickness JIS
H T H T
D
L
P
V
KTC
Taper Clearance
4 5 6 7 8 9
3.20 – 3.90 3.20 – 4.90 3.20 – 5.90 3.20 – 6.90 3.20 – 7.90 3.20 – 8.90 4.85 – 9.90 5.35 –10.90 5.85 –11.90 6.35 –12.90
7 8 9
ESVFE/ESVJFE 1.0 ≦ S ≦ (V × 3) and S ≦ 25 ESVFE–H/ESVFE–M 1.0 ≦ S ≦ (V × 5) and S ≦ 25
ESVFE ( V + 0.005 0
–
– –
0.80 ≦ V ≦ (P–1.2)
40.00–225.00
Effective Margin(S) Long
)
10 11 13 14 15 17 17 19
6
10 11 14 15 16 17 18
Short Type
L ≦ 200 2.00 ≦ V ≦ (P–1.2) L ＞ 200 2.00 ≦ V ≦ (P–1.6)
N ≧ L/2 (L–N ≧ 10)
ESVFE–H ( V + 0.01 0 ) ESVFE–M ( V + 0.01 0 )
4
ESVJFE ( V + 0.005 0 )
40.00–250.00
10 11 12 13
8
■ D designation type Head thickness 4mm Head thickness JIS
Part Number
0.01mm increments
N 1mm increments
D 0.1mm increments
Type
S 0.5mm increments
Head thickness 4mm
H T H T
L
P
V
Head thickness JIS
7 8 9
3.5 – 4.0 4.1 – 5.0 5.1 – 6.0 6.1 – 7.0 7.1 – 8.0 8.1 – 9.0 9.1 –10.0 10.1 –11.0 11.1 –12.0 12.1 –13.0
ESVBF/ESVJBF 1.0 ≦ S ≦ (V×3) and S ≦ 25 ESVBF–H/ESVBF–M 1.0 ≦ S ≦ (V × 5) and S ≦ 25
ESVBF ( V + 0.005 0
–
– –
0.80 ≦ V ≦ (P–1.2)
40.00–225.00
)
10 11 13 14 15 17 17 19
3.20 ≦ P ≦ (D–0.1)
6
10 11 14 15 16 17 18
L ≦ 200 2.00 ≦ V ≦ (P–1.2) L ＞ 200 2.00 ≦ V ≦ (P–1.6)
N ≧ L/2 (L–N ≧ 10)
ESVBF–H ( V + 0.01 0 ) ESVBF–M ( V + 0.01 0 )
4
ESVJBF ( V + 0.005 0 )
4.85 ≦ P ≦ (D–0.1) 5.35 ≦ P ≦ (D–0.1) 5.85 ≦ P ≦ (D–0.1) 6.35 ≦ P ≦ (D–0.1)
40.00–250.00
8
Part Number
–D–L–P–V–N–S
Order
(D selection type) – 140.00 – P4.90 – V3.70 – N80 – S11.0 (D designation type) ESVBF – 9.6 – 120.05 – P8.55 – V6.10 – N70 – S12.5 ESVFE 5
239
240
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